发明名称 |
LUBRICATOR VALVE WITH ROTATIONAL FLIP-FLAP ARM |
摘要 |
An improved lubricator valve arrangement for use within a wellbore to allow the passage of tools, such as perforating guns and the like, into the wellbore while it is live. The inclusion of two, independently controllable flapper-type safety valves within the lubricator valve will permit coordinated testing of fluid pressure both above and below the lubricator valve. The upper flapper valve includes a rotational flip-flap arm arrangement to positively open and close the upper flapper valve. The lower flapper valve is equipped with an integrated poppet-style pressure equalizing valve to allow the lower flapper valve to be opened more easily. The direction of opening of the flapper valves precludes or reduces the risk debris-related problems that might prevent or hinder opening of the flapper valves. |
申请公布号 |
WO2008067152(A3) |
申请公布日期 |
2008.09.12 |
申请号 |
WO2007US84493 |
申请日期 |
2007.11.13 |
申请人 |
BAKER HUGHES INCORPORATED;FARQUHAR, GRAHAM, E.;HARDIE, DAVID, A |
发明人 |
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分类号 |
E21B33/068;E21B34/10;E21B34/14 |
主分类号 |
E21B33/068 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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